Thunderbird is your e-mail client, it has to connect to some server. Your client might be working fine while you have a problem with your account on the server. Perhaps Comcast eventually deleted your account. If not perhaps you need a password reset, or there is some other issue that Comcast would have to take care of. Or possibly Comcast changed their mail servers and you need to point to a new server to access your e-mail, so you would have to change the server configuration in Thunderbird so it points to the right place.
I wasn't so much suggesting you get rid of Thunderbird, as much as just trying another application in its place to see if it works. If it does then you know to focus on Thunderbird (check its configuration, reinstall it etc.) If it doesn't than its more likely a problem with your account and doesn't have anything to do with Thunderbird.
------------
From Comcast's website here is the email setting information. Make sure yours matches. (You might also consider calling Comcast support, esp. if everything matches but still doesn't work)
--
Email Settings When your program asks you to set up your email, use these settings to connect your Comcast email: - Incoming Mail Server Name: imap.comcast.net
- Incoming Mail Server Port Number: 993 with SSL ON
- If the Mail Client lets you select an authentication method, choose STARTTLS.
- If Needed: 143 with SSL ON
- Outgoing Mail Server Name: smtp.comcast.net
- Outgoing Mail Server Port Number: 587 (SMTP)
- Encryption: TLS (use SSL if TLS isn't shown.)
- Authentication: Type in your Comcast username and password
Email Setup: Port Numbers and POP vs. IMAP When you're setting up your email account, your program will ask for some information about email "protocols." Here are a couple of things to know as part of your set-up:
Port Numbers: Your email port is how email moves from one email server to another. To protect your security and help prevent spam, we no longer support port 25. If you're using an older email program like Outlook Express, Outlook, or Mac Mail, you may have trouble sending email. Learn more about port 25.
POP vs. IMAP: POP (Post Office Protocol) and IMAP (Internet Message Access Protocol) are two different ways to get email in your email program. We recommend using IMAP for your Comcast email. POP can cause problems when checking your mail from more than one phone or computer because POP removes the mail from our server and delivers it to your device. IMAP makes it easier to sync your email on multiple devices because your folders and mail remain on our server until you move or delete them with your device. With IMAP, the email changes you make on one device, like your smartphone, are reflected on your other devices, like your laptop.
But if you'd still like to use POP, use these settings in your email program: - Incoming Mail Server Name: pop3.comcast.net
- Incoming Mail Server Port Number: 995 (POP3 with SSL)
- Incoming Mail Server Port 110 is no longer supported. Make sure to use port 995 instead. You can check this in your email program's Settings, Advanced Settings or Preferences menu.
Learn more about updating your POP settings or switching from POP to IMAP.
xfinity.com
----------------------------------------
Note I don't use Thunderbird. I never regularly used it, and only briefly looked in to it over a decade ago. I'm going from general PC knowledge and support experience not familiarity with the program. So I don't know exactly where all those settings are. I could search the web for that, but so could you. I could even install it just to fiddle with the configuration and then uninstall butt that probably won't be necessary. If anything happened to, or has to be done to, your account you need to go to Comcast support. |
